From: "Andreas Röhler" <andreas.roehler@easy-emacs.de>
To: Drew Adams <drew.adams@oracle.com>,
Noam Postavsky <npostavs@users.sourceforge.net>
Cc: Stephen Berman <stephen.berman@gmx.net>, 24969@debbugs.gnu.org
Subject: bug#24969: 26.0.50; number-at-point
Date: Mon, 21 Nov 2016 07:48:47 +0100 [thread overview]
Message-ID: <37f0b2e5-f446-a8c4-635a-5cc120cbb66e@easy-emacs.de> (raw)
In-Reply-To: <4b460e35-7e65-4224-a52b-083f87b24c70@default>
On 20.11.2016 22:28, Drew Adams wrote:
>>> I guess it depends on what a user would expect of a
>>> "number-at-point" function. A priori, I don't see why s?he
>>> would expect a non-nil answer if the numeral is embedded in
>>> text that does not delimit a numeral (e.g. non whitespace text).
>>> But maybe it is OK.
>>>
>>> Would we expect the same kind of behavior for `sexp-at-point'
>>> if a sexp were not surrounded by chars that delimit a sexp?
>>>
>>> In Lisp, at least, there is no number at point, in `foo-2'.
>>> That is, the Lisp parser (reader) would never pick up the
>>> `2' as a number here.
>>>
>>> I'm partial to use of thingatpt for Lisp, but I realize that
>>> it is used in other contexts too.
>> In use here for edit-purposes. For example raise all numbers
>> in a region - makes it easier sometimes to adapt stuff, which
>> doesn't deserve an own template.
> But the question is, "What constitutes a numeral?" in the given
> context. Whatever the context, I would expect some kind of
> well-defined delimiting. In Lisp I would expect what the Lisp
> reader would pick up as a number - nothing more.
The perspective of the lisp-programmer and the user of an editor may be
different here.
The implementation at progress should pick any valid hex- octal- or
decimal integer at point.
In a related case even characters are raised here, returning a "b" for
an "a", an "y" for an "x" etc.
Thus smart-inserting a second (loop)-variable given there exist already
a first one.
> And that would
> exclude picking up `2' within `foo-2'.
Not, when for example filenames inside shell-scripts etc. are edited.
>
>> Have a first implementation with ar-add-numbers in
>> https://github.com/andreas-roehler/werkstatt/blob/master/misc/misc-
>> utils.el - just re-writing it.
> There is no `ar-add-numbers' or `add-numbers' in that file
> (having downloaded it just now). Perhaps you meant
> `ar-add-to-number-cummulative'? That is undefined, without
> `ar-bounds-of-number-atpt' (not in the file).
Errrm, ar-add-to-number should DTRT, sorry.
next prev parent reply other threads:[~2016-11-21 6:48 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-20 12:47 bug#24969: 26.0.50; number-at-point Andreas Röhler
2016-11-20 12:53 ` Stephen Berman
2016-11-20 13:53 ` Andreas Röhler
2016-11-20 14:15 ` npostavs
2016-11-20 16:19 ` Drew Adams
2016-11-20 16:35 ` Noam Postavsky
2016-11-20 16:58 ` Drew Adams
2016-11-20 19:26 ` Andreas Röhler
2016-11-20 21:28 ` Drew Adams
2016-11-21 6:48 ` Andreas Röhler [this message]
2016-11-21 14:22 ` Drew Adams
2016-11-21 13:09 ` Tino Calancha
2016-11-21 23:07 ` Drew Adams
2016-11-22 8:45 ` Andreas Röhler
2021-08-10 16:18 ` Lars Ingebrigtsen
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